give off carbon dioxide

例句：

1. 1.The car engine gave off a loud noise when it started.
   汽车发动机启动时发出了响亮的噪音。
2. 2. The scientist gave off a strong scent as she walked into the laboratory.
   科学家走进实验室时散发出强烈的气味。
3. 3.The firefighters were able to give off smoke from the burning building.
   消防员能够从燃烧的建筑中释放出烟雾。